On later models, bend the rod as indicated in figure 37. After bending the vent rod in either case, recheck the pump override spring adjustment.

Figure 39. Checking Choke Lever Position

Figure 37. Adjusting Air Vent Rod and Valve

K. CHOKE LEVER CLEARANCE

(1) On model 4160 with mechanical secondarys, check the choke lever for correct position by holding the choke closed with the choke lever. The distance from the center line of the choke lever hole to the base of the throttle body should be 1 13/16 inches. If necessary to correct this distance, bend the choke rod at the location indicated in Figure 39. This is necessary only on models with a divorced choke.

Figure 38. Checking Over Ride Spring Adjustment

J. CHECKING OVERRIDE SPRING ADJUST

MENT

(1) The pump over ride spring adjustment is checked while holding the throttle in the wide open position and the pump operating lever held in a fully compressed position. The clearance between the adjusting nut and arm of the pump lever should be .015.

(2) After making this adjustment, move the throttle lever from a closed position toward open. Any movement at the throttle lever should be noticed at the pump operating lever. This indicates correct tip-in.